Sawing-machine



(No Model.)

H. L. BEACH. SAWING MACHINE.

No. 429,887. PatentedJune 10, 1890@ JWM l UNITED STATES PATENT OEEICE.

HENRY LLOYD BEACH, OE MONTROSE, PENNSYLVANIA.

SAWING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 429,837, dated J une10, 1890.

Application filed January 2, 1890. Serial No. 335,575. (No model.)

To all whom, it may concern:

Be it known that I, HENRY LLOYD BEACH, a citizen of the United States,residing at Montrose, in the county of Susquehanna and State ofPennsylvania,have invent-ed certain new and useful Improvements inSawing-Machines, of which the following is a full and clear description,reference being had to the accompanying drawings, forming part of thisspecification, in which- Figure l represents a perspective view of asawing-machine embodying my invention. Fig. 2 is a transverse sectionalview of the same on theline X X of Fig. 1. Eigs andl]E are details ofone means of locking the carriage to the main frame.

My invention relates to certain new and useful improvements insawing-machines, and especially to that class adapted for crosscuttingand slitting purposes; and my invention consists in the constructionsand combinations of devices which I shall hereinafter fully decribe andclaim.

To enable others skilled inthe art to make and use my invention, I willnow describe its construction and indicate the manner in which I carrythe same out.

Referring` to the drawings, A represents a frame-Work of any desired andappropriate construction, having fitted to the upper portions ofitssides suitable track-irons B, which may be fixed to the frame or maybe fitted thereon to have a vertical movement, for a purpose I willhereinafter make known.

Upon the top of the frame A is placed a bed or carriage C, whose surfaceis slotted to receive the upper portion of the saw D, which is mountedon an arbor E, journaled below thebed or carriage in suitable boxes orbearings 0, cn the main frame, the said arbor carrying a pulley7 E', towhich power is applied in any well-known manner to rotate the saw at ahigh rate of speed.

The bed or carriage C is provided at or near its sides with track-ironsE, and between these track-irons and the track-irons 0n the main frame Iinterpose free rolling bearings, each consisting of a shaft G, having nofixed bearings, but having a free rolling movement, and each shaft beingunconnected with the others, so that the movement of one shaft is notcontrolled or affected by the others. These shafts may be groov'ed orhave fixed toone end a flat roller II and to the other a grooved rollerH', which lies between the adjacent faces of thetrack-irons B audE`respectively, so that the groove in the shaft or face of the roller willbe engaged by said tracks, thereby dispensing with two rollers at eachend of the shafts or with double grooved or faced rollers, and simplyfixing and cheapenin g the construction of the machine. This manner ofmounting the bed or carriage provides for an easy7 movement of the same,reducing to a minimum the friction between the track-irons anddispensing with the power which has heretofore been necessary to movethe bed or carriage upon its ways or tracks.

Vhile the track-irons B on the frame A may be constructed similar tothose on the bed or carriage, nevertheless I prefer to make themsubstantially as shown in Eig. l, where they are shown as each formingpart of a single casting having its front portion provided with a curvedslot b, through which and across the frame the rod c passes, having atone end a head c and at the opposite end a nut or hand-wheel c forclamping the trackirons B, and from the track-irons of the frame extendprojections d, which are arranged at the ends of the tracks and serve asstops to limit the movements of the shafts or rollers, while other stopson the carriage limit the reciprocating movements of the bed orcarriage.

Journaled in the upper portion of the main frame and near the front andrear portions thereof are two shafts I I', whose opposite ends havesecured rigidly to them one end of suitable links J, whose opposite endsare secured pivotally upon pins or studs e, projecting from thetrack-irons B, and to the shaft Iis keyed or otherwise rigidly securedan arm K, which extends downwardly and has an opening in its lower endto receive and pivotally secure a threaded bearing, through which thelower end of a screw-rod L passes, said screw-rod having its upper endpassing through a pivoted bearing in a casting INI on the front of themain frame A and provided with a hand-wheel N, as shown. From thedescription of these parts it will be seen that when the hand-wheel isturned the screw-rod L works through its bearings, thereby raising thearm K and rocking the shaft Iin itsbear- TOO ings. This movement raisesthe links J at the front portion of the machine and thereby forces thetrack-irons upward, (the handwheel having been first released,) causingthe rear links J tolikewise move upward, and the track-irons and the bedor carriage, and interposed roller-bearing to be adjusted verti callywith such relation to the saw that I am enabled to regulate under allpossible cc nditions the depth of out of said saw.

The track-irons B may be fixed instead of movable, and the machine maybe almost in stantly converted from a crosseut-maehine to one adaptedfor slitting purposes by simply locking the bed or carriage to some partof the main frame A-say to the front portion of the track-iron B-bymeans of a pivoted hook, (see Fig. 4,) slotted link, and set-screw, orother well-known means engaging a stud or projection X on the carriage.The bed or carriage may also be provided with any desired form of gage.

A machine constructed as previously described is compact, may be cheaplyconstructed, and combines the function of a cross cutting and slittingmaehine,while the mounting of the bed o1' carriage enables the operaforto move the said carriage toward the saw with but little effort, evenwhen the carriage is heavily laden.

I-Iavingthus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. 'lhe combination, in a sawing-machine, of a main frame, a carriage orbed, means for detachably connecting the carriage or bed with the mainframe, whereby said carriage or bed may be moved or rigidly held, androllers or wheels between the carriage or bed and main frame, saidrollers having no fixed bearings.

2. The combination, in a sawing-maehine, of a main frame, averticallyadjustable carriage or bed, means for temporarily locking thecarriage to the frame, whereby the machine is adapted for eross-cuttingand slittingr purposes, and a free roller -bearing between the carriageor bed and frame, said bearing consisting of shafts with fixed endrollers and each shaft being independent and unconnected with theremaining shafts.

The combination, in a sawing-machine, of a main frame having movabletrack-irons, a bed or carriage having fixed track-irons, shafts withoutfixed bearings having rollers provided with grooves in which lie thetrack irons of the main frame and carriage, a sawarbor and saw, andmeans for communicating power thereto, substantially as described.

4. The combination, in a sawing-machine, of a main frame havingtrack-irons adjustably secured thereto, means for adjusting said irons,a bed or carriage having trackirons, shafts beneath the bed or carriagehaving no fixed bearings and provided with rollers at the ends havinggrooves engaging the track-irous of both the carriage and main frame,stops for limiting the movement ofthe rollers and carriage, and meansfor locking the carriage to a part of the main frame, whereby themachine is adapted for crosscutting and slitting purposes, substantiallyas described.

5. In a sawing-machine, the combination of the main frame, thetrack-irons fitted thereto, having' curved slots in the forward end,arod passing through the slots and having a handwheel, the shafts I andI', having links er arms pivotally secured to said track-irons, anoperating-screw and connection with the shaft I for raising thetrack-irons vertically, a bed or carriage having track-irons, shaftswith no fixed bearings beneath the carriage having a roller on each. endengaging the tracks of the frame and carriage, and means for locking thecarriage to the frame when necessary, substantially as described.

C. In a sawing-machine, the main frame having adjustable track-irons anda carriage having fixed track-irons immediately over and in line withthe track-irons of the main frame, in con'ibination with a free rollingbearing between the carriage and main frame, consisting of unconnectedshafts having no fixed bearings, said shafts carrying upon their endsrollers having grooves common to both tracks, substantially asdescribed.

HENRY LLOYD BEACH. IIIitiiesses:

W. H. WARNER, W. B. DEANs.

